First identify which type of phone you have GSM or CDMA then fill at least one field below.
Find your identifier on your phones label, usually found under the battery click here for help on finding the right identifier.
iDEN/GSM phones : If your phone has a SIM card, you have a GSM unit. The MSN and IMEI numbers are clearly marked.

   Examples: 364AEL02J7 or D54GGMT7R6

   Examples: 00010000148250 or 354904008327814
CDMA phones : If your phone does not have a SIM card, you have a CDMA phone.

   Examples: 1BCC5FDF, A00000026A1EAE2

   Examples: 05215401658, 268435456202686987